WordPress Site does not load—URGENT REPLY NEEDED

He wordpress Boos,

Please help me to get the life back on my site.
I have actived and tried added the code on add post footer plugin. Once i clicked the button update settings.
It got stucked. i was afrain, and then tried to see the site whether working or not. It did show me up nothing, and then i though of deactivating the plugin.

For deactivating i tried to view the admin pannel and it did not show me anything.

Please help me dudes, what to do now…
The site is http://www.www.mysteryanswers.com